YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 07:25:23,799 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 07:25:23,802 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 07:25:23,813 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 07:25:23,813 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 07:25:23,814 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 07:25:23,815 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 07:25:23,817 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 07:25:23,818 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 07:25:23,819 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 07:25:23,820 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 07:25:23,820 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 07:25:23,821 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 07:25:23,822 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 07:25:23,823 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 07:25:23,823 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 07:25:23,824 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 07:25:23,826 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 07:25:23,828 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 07:25:23,829 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 07:25:23,830 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 07:25:23,831 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 07:25:23,833 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 07:25:23,833 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 07:25:23,833 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 07:25:23,834 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 07:25:23,834 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 07:25:23,835 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 07:25:23,835 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 07:25:23,836 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 07:25:23,837 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 07:25:23,837 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 07:25:23,838 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 07:25:23,839 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 07:25:23,839 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 07:25:23,839 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 07:25:23,840 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 07:25:23,840 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 07:25:23,841 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 07:25:23,841 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 07:25:23,856 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 07:25:23,856 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 07:25:23,857 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 07:25:23,857 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 07:25:23,857 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 07:25:23,858 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:25:23,858 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 07:25:23,858 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 07:25:23,858 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 07:25:23,858 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 07:25:23,858 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 07:25:23,859 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 07:25:23,859 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 07:25:23,859 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 07:25:23,859 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:25:23,859 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 07:25:23,859 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 07:25:23,860 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 07:25:23,860 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 07:25:23,860 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 07:25:23,860 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 07:25:23,860 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 07:25:23,861 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 07:25:23,861 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 07:25:23,861 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:25:23,861 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 07:25:23,861 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 07:25:23,861 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 07:25:23,862 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 07:25:23,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 07:25:23,899 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 07:25:23,902 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 07:25:23,904 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 07:25:23,904 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 07:25:23,905 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:25:23,966 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/1b41637919a1492f9219f85127d219b4/FLAGccadea3fb [2020-06-22 07:25:24,300 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 07:25:24,300 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:25:24,326 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/1b41637919a1492f9219f85127d219b4/FLAGccadea3fb [2020-06-22 07:25:24,717 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/1b41637919a1492f9219f85127d219b4 [2020-06-22 07:25:24,728 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 07:25:24,730 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 07:25:24,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 07:25:24,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 07:25:24,735 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 07:25:24,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:25:24" (1/1) ... [2020-06-22 07:25:24,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33e1e127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:24, skipping insertion in model container [2020-06-22 07:25:24,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:25:24" (1/1) ... [2020-06-22 07:25:24,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 07:25:24,766 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 07:25:24,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:25:24,931 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 07:25:25,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:25:25,021 INFO L195 MainTranslator]: Completed translation [2020-06-22 07:25:25,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:25 WrapperNode [2020-06-22 07:25:25,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 07:25:25,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 07:25:25,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 07:25:25,023 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 07:25:25,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:25" (1/1) ... [2020-06-22 07:25:25,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:25" (1/1) ... [2020-06-22 07:25:25,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 07:25:25,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 07:25:25,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 07:25:25,058 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 07:25:25,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:25" (1/1) ... [2020-06-22 07:25:25,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:25" (1/1) ... [2020-06-22 07:25:25,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:25" (1/1) ... [2020-06-22 07:25:25,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:25" (1/1) ... [2020-06-22 07:25:25,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:25" (1/1) ... [2020-06-22 07:25:25,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:25" (1/1) ... [2020-06-22 07:25:25,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:25" (1/1) ... [2020-06-22 07:25:25,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 07:25:25,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 07:25:25,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 07:25:25,075 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 07:25:25,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:25" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:25:25,146 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2020-06-22 07:25:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2020-06-22 07:25:25,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 07:25:25,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 07:25:25,288 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 07:25:25,288 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2020-06-22 07:25:25,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:25:25 BoogieIcfgContainer [2020-06-22 07:25:25,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 07:25:25,290 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 07:25:25,290 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 07:25:25,292 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 07:25:25,293 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:25:25" (1/1) ... [2020-06-22 07:25:25,309 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 18 edges [2020-06-22 07:25:25,311 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 07:25:25,312 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 07:25:25,312 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 07:25:25,313 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:25:25,314 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 07:25:25,315 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 07:25:25,315 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 07:25:25,331 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 07:25:25,339 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 07:25:25,344 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 07:25:25,346 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:25:25,356 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 07:25:25,358 INFO L70 RemoveSinkStates]: Removed 2 edges and 2 locations by removing sink states [2020-06-22 07:25:25,359 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 07:25:25,360 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:25:25,360 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 07:25:25,360 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 07:25:25,361 INFO L313 BlockEncoder]: Encoded RCFG 11 locations, 14 edges [2020-06-22 07:25:25,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:25:25 BasicIcfg [2020-06-22 07:25:25,361 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 07:25:25,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 07:25:25,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 07:25:25,365 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 07:25:25,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 07:25:24" (1/4) ... [2020-06-22 07:25:25,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbcc433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:25:25, skipping insertion in model container [2020-06-22 07:25:25,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:25" (2/4) ... [2020-06-22 07:25:25,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbcc433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:25:25, skipping insertion in model container [2020-06-22 07:25:25,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:25:25" (3/4) ... [2020-06-22 07:25:25,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbcc433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:25:25, skipping insertion in model container [2020-06-22 07:25:25,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:25:25" (4/4) ... [2020-06-22 07:25:25,370 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:25:25,380 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 07:25:25,387 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 07:25:25,404 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 07:25:25,436 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:25:25,437 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 07:25:25,437 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 07:25:25,437 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:25:25,437 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:25:25,438 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:25:25,438 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 07:25:25,438 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:25:25,438 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 07:25:25,456 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-06-22 07:25:25,461 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 07:25:25,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-06-22 07:25:25,524 INFO L451 ceAbstractionStarter]: At program point loopENTRY(lines 37 43) the Hoare annotation is: true [2020-06-22 07:25:25,524 INFO L451 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: true [2020-06-22 07:25:25,524 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-06-22 07:25:25,525 INFO L448 ceAbstractionStarter]: For program point L38-1(lines 37 43) no Hoare annotation was computed. [2020-06-22 07:25:25,525 INFO L448 ceAbstractionStarter]: For program point loopEXIT(lines 37 43) no Hoare annotation was computed. [2020-06-22 07:25:25,525 INFO L451 ceAbstractionStarter]: At program point L34-1(lines 29 35) the Hoare annotation is: true [2020-06-22 07:25:25,525 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2020-06-22 07:25:25,525 INFO L448 ceAbstractionStarter]: For program point L31-1(lines 31 34) no Hoare annotation was computed. [2020-06-22 07:25:25,526 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 07:25:25,526 INFO L451 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: true [2020-06-22 07:25:25,526 INFO L451 ceAbstractionStarter]: At program point L34(lines 29 35) the Hoare annotation is: true [2020-06-22 07:25:25,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:25:25 BasicIcfg [2020-06-22 07:25:25,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 07:25:25,535 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 07:25:25,535 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 07:25:25,538 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 07:25:25,539 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:25:25,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 07:25:24" (1/5) ... [2020-06-22 07:25:25,540 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28f2fe96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:25:25, skipping insertion in model container [2020-06-22 07:25:25,540 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:25:25,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:25:25" (2/5) ... [2020-06-22 07:25:25,541 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28f2fe96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 07:25:25, skipping insertion in model container [2020-06-22 07:25:25,541 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:25:25,541 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:25:25" (3/5) ... [2020-06-22 07:25:25,541 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28f2fe96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:25:25, skipping insertion in model container [2020-06-22 07:25:25,542 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:25:25,542 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:25:25" (4/5) ... [2020-06-22 07:25:25,542 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@28f2fe96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:25:25, skipping insertion in model container [2020-06-22 07:25:25,542 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 07:25:25,542 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:25:25" (5/5) ... [2020-06-22 07:25:25,544 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:25:25,570 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:25:25,571 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 07:25:25,571 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 07:25:25,571 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:25:25,571 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:25:25,571 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:25:25,571 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 07:25:25,572 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:25:25,572 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 07:25:25,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-06-22 07:25:25,594 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:25:25,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:25:25,595 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:25:25,602 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-06-22 07:25:25,602 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 07:25:25,602 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 07:25:25,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-06-22 07:25:25,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-22 07:25:25,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 07:25:25,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 07:25:25,604 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-06-22 07:25:25,604 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 07:25:25,610 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue [41] ULTIMATE.startENTRY-->L31: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_6|, ULTIMATE.start_random_#t~nondet5=|v_ULTIMATE.start_random_#t~nondet5_3|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_5, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_3|, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_3|} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_random_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_random_~x~1, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_random_#res, ULTIMATE.start_main_#t~ret4] 3#L31true [38] L31-->L34: Formula: (and (= |v_ULTIMATE.start_random_#res_7| (- v_ULTIMATE.start_random_~x~1_7)) (< v_ULTIMATE.start_random_~x~1_7 0)) InVars {ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_7} OutVars{ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_7, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_7|} AuxVars[] AssignedVars[ULTIMATE.start_random_#res] 11#L34true [46] L34-->L31-1: Formula: (= |v_ULTIMATE.start_main_#t~ret3_1| |v_ULTIMATE.start_random_#res_2|) InVars {ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_2|} OutVars{ULTIMATE.start_random_#t~nondet5=|v_ULTIMATE.start_random_#t~nondet5_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_1, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_random_#t~nondet5, ULTIMATE.start_random_~x~1, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_random_#res] 12#L31-1true [53] L31-1-->L34-1: Formula: (and (>= v_ULTIMATE.start_random_~x~1_4 0) (= |v_ULTIMATE.start_random_#res_4| v_ULTIMATE.start_random_~x~1_4)) InVars {ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_4} OutVars{ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_4, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_4|} AuxVars[] AssignedVars[ULTIMATE.start_random_#res] 8#L34-1true [43] L34-1-->L25: Formula: (= |v_ULTIMATE.start_main_#t~ret4_1| |v_ULTIMATE.start_random_#res_5|) InVars {ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_5|} OutVars{ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_1|, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret4] 13#L25true [49] L25-->loopENTRY: Formula: (and (= |v_loop_#in~aInParam_2| |v_ULTIMATE.start_main_#t~ret3_5|) (= |v_loop_#in~bInParam_2| |v_ULTIMATE.start_main_#t~ret4_5|)) InVars {ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_5|} OutVars{loop_#in~b=|v_loop_#in~bInParam_2|, loop_#in~a=|v_loop_#in~aInParam_2|} AuxVars[] AssignedVars[loop_#in~b, loop_#in~a]< 5#loopENTRYtrue [2020-06-22 07:25:25,611 INFO L796 eck$LassoCheckResult]: Loop: 5#loopENTRYtrue [35] loopENTRY-->L38: Formula: (and (= v_loop_~b_1 |v_loop_#in~b_1|) (= v_loop_~a_1 |v_loop_#in~a_1|)) InVars {loop_#in~b=|v_loop_#in~b_1|, loop_#in~a=|v_loop_#in~a_1|} OutVars{loop_#in~b=|v_loop_#in~b_1|, loop_#in~a=|v_loop_#in~a_1|, loop_~b=v_loop_~b_1, loop_~a=v_loop_~a_1} AuxVars[] AssignedVars[loop_~b, loop_~a] 10#L38true [44] L38-->L41: Formula: (and (= v_loop_~a_2 (+ v_loop_~b_3 v_loop_~a_3)) (= v_loop_~b_2 (+ v_loop_~b_3 (- 1))) (< 0 v_loop_~a_3)) InVars {loop_~b=v_loop_~b_3, loop_~a=v_loop_~a_3} OutVars{loop_~b=v_loop_~b_2, loop_~a=v_loop_~a_2} AuxVars[] AssignedVars[loop_~b, loop_~a] 4#L41true [34] L41-->loopENTRY: Formula: (and (= |v_loop_#in~bInParam_1| v_loop_~b_5) (= |v_loop_#in~aInParam_1| v_loop_~a_6)) InVars {loop_~b=v_loop_~b_5, loop_~a=v_loop_~a_6} OutVars{loop_#in~b=|v_loop_#in~bInParam_1|, loop_#in~a=|v_loop_#in~aInParam_1|} AuxVars[] AssignedVars[loop_#in~b, loop_#in~a]< 5#loopENTRYtrue [2020-06-22 07:25:25,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:25:25,617 INFO L82 PathProgramCache]: Analyzing trace with hash 2097815371, now seen corresponding path program 1 times [2020-06-22 07:25:25,619 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:25:25,619 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:25:25,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:25:25,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:25:25,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:25:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:25:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:25:25,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:25:25,701 INFO L82 PathProgramCache]: Analyzing trace with hash 64824, now seen corresponding path program 1 times [2020-06-22 07:25:25,701 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:25:25,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:25:25,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:25:25,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:25:25,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:25:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:25:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:25:25,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:25:25,717 INFO L82 PathProgramCache]: Analyzing trace with hash -51371602, now seen corresponding path program 1 times [2020-06-22 07:25:25,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:25:25,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:25:25,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:25:25,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:25:25,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:25:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:25:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:25:25,831 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:25:25,832 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:25:25,833 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:25:25,833 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:25:25,833 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 07:25:25,833 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:25:25,833 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:25:25,833 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:25:25,834 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:25:25,834 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:25:25,834 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:25:25,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:25:25,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:25:25,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:25:25,929 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:25:25,930 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:25:25,940 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:25:25,940 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:25:25,949 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:25:25,949 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {loop_~b=0} Honda state: {loop_~b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:25:25,981 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:25:25,981 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:25:25,985 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 07:25:25,985 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {loop_~a=0} Honda state: {loop_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:25:26,013 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 07:25:26,013 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:25:26,045 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 07:25:26,045 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 07:25:27,787 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 07:25:27,789 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 07:25:27,789 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 07:25:27,790 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 07:25:27,790 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 07:25:27,790 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 07:25:27,790 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 07:25:27,790 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 07:25:27,790 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 07:25:27,790 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 07:25:27,790 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 07:25:27,791 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 07:25:27,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:25:27,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:25:27,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 07:25:27,848 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 07:25:27,854 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 07:25:27,855 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:25:27,857 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:25:27,857 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:25:27,857 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:25:27,858 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:25:27,858 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:25:27,860 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:25:27,860 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:25:27,864 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:25:27,864 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:25:27,865 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:25:27,865 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:25:27,865 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:25:27,865 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:25:27,865 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:25:27,866 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:25:27,866 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:25:27,867 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:25:27,867 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:25:27,868 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:25:27,868 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:25:27,868 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:25:27,868 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:25:27,869 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 07:25:27,870 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 07:25:27,870 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:25:27,877 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:25:27,878 INFO L497 LassoAnalysis]: Using template '2-nested'. [2020-06-22 07:25:27,878 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:25:27,879 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:25:27,879 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:25:27,879 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:25:27,879 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:25:27,879 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 07:25:27,880 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 07:25:27,880 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:25:27,881 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:25:27,882 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:25:27,882 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:25:27,882 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:25:27,883 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:25:27,883 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:25:27,883 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 07:25:27,884 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 07:25:27,884 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:25:27,885 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 07:25:27,885 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 07:25:27,886 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 07:25:27,886 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 07:25:27,886 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 07:25:27,886 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 07:25:27,887 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-22 07:25:27,888 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-22 07:25:27,888 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 07:25:27,898 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 07:25:27,912 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-06-22 07:25:27,912 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 07:25:27,915 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 07:25:27,915 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 07:25:27,915 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 07:25:27,915 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*loop_#in~b + 1 f1 = 2*loop_#in~a Supporting invariants [] [2020-06-22 07:25:27,917 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 07:25:27,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:25:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:25:27,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 07:25:27,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:25:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:25:28,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 14 conjunts are in the unsatisfiable core [2020-06-22 07:25:28,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 07:25:28,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:25:28,453 INFO L98 LoopCannibalizer]: 11 predicates before loop cannibalization 11 predicates after loop cannibalization [2020-06-22 07:25:28,458 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 11 loop predicates [2020-06-22 07:25:28,459 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states. Second operand 4 states. [2020-06-22 07:25:28,674 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2020-06-22 07:25:28,941 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states.. Second operand 4 states. Result 40 states and 46 transitions. Complement of second has 19 states. [2020-06-22 07:25:28,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-06-22 07:25:28,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 07:25:28,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2020-06-22 07:25:28,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 6 letters. Loop has 3 letters. [2020-06-22 07:25:28,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:25:28,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 9 letters. Loop has 3 letters. [2020-06-22 07:25:28,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:25:28,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 6 letters. Loop has 6 letters. [2020-06-22 07:25:28,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 07:25:28,960 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 46 transitions. [2020-06-22 07:25:28,965 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:25:28,967 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2020-06-22 07:25:28,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 07:25:28,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 07:25:28,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 07:25:28,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 07:25:28,970 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:25:28,970 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:25:28,970 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 07:25:28,970 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 07:25:28,970 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 07:25:28,971 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 07:25:28,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 07:25:28,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 07:25:28 BasicIcfg [2020-06-22 07:25:28,976 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 07:25:28,977 INFO L168 Benchmark]: Toolchain (without parser) took 4248.24 ms. Allocated memory was 649.6 MB in the beginning and 695.7 MB in the end (delta: 46.1 MB). Free memory was 564.2 MB in the beginning and 452.3 MB in the end (delta: 111.9 MB). Peak memory consumption was 158.1 MB. Max. memory is 50.3 GB. [2020-06-22 07:25:28,978 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 07:25:28,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.54 ms. Allocated memory was 649.6 MB in the beginning and 695.7 MB in the end (delta: 46.1 MB). Free memory was 564.2 MB in the beginning and 661.0 MB in the end (delta: -96.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-06-22 07:25:28,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.72 ms. Allocated memory is still 695.7 MB. Free memory was 661.0 MB in the beginning and 659.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 07:25:28,980 INFO L168 Benchmark]: Boogie Preprocessor took 16.92 ms. Allocated memory is still 695.7 MB. Free memory was 659.6 MB in the beginning and 658.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 07:25:28,980 INFO L168 Benchmark]: RCFGBuilder took 214.66 ms. Allocated memory is still 695.7 MB. Free memory was 658.3 MB in the beginning and 641.9 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:25:28,981 INFO L168 Benchmark]: BlockEncodingV2 took 71.44 ms. Allocated memory is still 695.7 MB. Free memory was 641.9 MB in the beginning and 637.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. [2020-06-22 07:25:28,981 INFO L168 Benchmark]: TraceAbstraction took 172.43 ms. Allocated memory is still 695.7 MB. Free memory was 636.5 MB in the beginning and 627.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:25:28,982 INFO L168 Benchmark]: BuchiAutomizer took 3441.51 ms. Allocated memory is still 695.7 MB. Free memory was 625.7 MB in the beginning and 452.3 MB in the end (delta: 173.4 MB). Peak memory consumption was 173.4 MB. Max. memory is 50.3 GB. [2020-06-22 07:25:28,986 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 15 locations, 18 edges - StatisticsResult: Encoded RCFG 11 locations, 14 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 291.54 ms. Allocated memory was 649.6 MB in the beginning and 695.7 MB in the end (delta: 46.1 MB). Free memory was 564.2 MB in the beginning and 661.0 MB in the end (delta: -96.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.72 ms. Allocated memory is still 695.7 MB. Free memory was 661.0 MB in the beginning and 659.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 16.92 ms. Allocated memory is still 695.7 MB. Free memory was 659.6 MB in the beginning and 658.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 214.66 ms. Allocated memory is still 695.7 MB. Free memory was 658.3 MB in the beginning and 641.9 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.44 ms. Allocated memory is still 695.7 MB. Free memory was 641.9 MB in the beginning and 637.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 172.43 ms. Allocated memory is still 695.7 MB. Free memory was 636.5 MB in the beginning and 627.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3441.51 ms. Allocated memory is still 695.7 MB. Free memory was 625.7 MB in the beginning and 452.3 MB in the end (delta: 173.4 MB). Peak memory consumption was 173.4 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 11 locations, 0 error locations. SAFE Result, 0.1s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 5 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has 2-nested ranking function (if 2 * \old(b) + 1 > 0 then 1 else 0), (if 2 * \old(b) + 1 > 0 then 2 * \old(b) + 1 else 2 * \old(a)) and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 40 SDslu, 9 SDs, 0 SdLazy, 23 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 3ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 07:25:21.484 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 07:25:29.221 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check